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/*
 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __COMMAND_H__
#define __COMMAND_H__

#define CMD_FLAG_GLOBAL ((int)0x80000000)       /* don't iterate "args" */

typedef int (*cfunc_t)(int argc, char **argv);
typedef void (*helpfunc_t)(void);

typedef struct cmdinfo {
        const char      *name;
        const char      *altname;
        cfunc_t         cfunc;
        int             argmin;
        int             argmax;
        int             canpush;
        int             flags;
        const char      *args;
        const char      *oneline;
        helpfunc_t      help;
} cmdinfo_t;

extern cmdinfo_t        *cmdtab;
extern int              ncmds;

extern void             help_init(void);
extern void             quit_init(void);

typedef int (*argsfunc_t)(int index);
typedef int (*checkfunc_t)(const cmdinfo_t *ci);

extern void             add_command(const cmdinfo_t *ci);
extern void             add_user_command(char *optarg);
extern void             add_args_command(argsfunc_t af);
extern void             add_check_command(checkfunc_t cf);

extern const cmdinfo_t  *find_command(const char *cmd);

extern void             command_loop(void);
extern int              command_usage(const cmdinfo_t *ci);
extern int              command(const cmdinfo_t *ci, int argc, char **argv);

/* from input.h */
extern char     **breakline(char *input, int *count);
extern void     doneline(char *input, char **vec);
extern char     *fetchline(void);

extern long long cvtnum(char *s);
extern void     cvtstr(double value, char *str, size_t sz);

extern struct timeval tsub(struct timeval t1, struct timeval t2);
extern double   tdiv(double value, struct timeval tv);

enum {
        DEFAULT_TIME            = 0x0,
        TERSE_FIXED_TIME        = 0x1,
        VERBOSE_FIXED_TIME      = 0x2
};

extern void     timestr(struct timeval *tv, char *str, size_t sz, int flags);

extern char *progname;

#endif  /* __COMMAND_H__ */